Do not use Resource for setting no_handler_reason

Instead, use ScriptSourceLocationType::kExternalFile,

Bug: 788828
Change-Id: Ibc69d49e372ff08fd5817163e157503f3e45d1ae
Reviewed-on: https://chromium-review.googlesource.com/786094
Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org>
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#520698}

third_party/WebKit/Source/bindings/core/v8/V8ScriptRunner.cpp

@@ -484,15 +484,14 @@ v8::MaybeLocal<v8::Script> V8ScriptRunner::CompileScript(
     case ScriptSourceLocationType::kInlineInsideDocumentWrite:
       no_handler_reason = v8::ScriptCompiler::kNoCacheBecauseInDocumentWrite;
       break;
+    case ScriptSourceLocationType::kExternalFile:
+      no_handler_reason =
+          v8::ScriptCompiler::kNoCacheBecauseResourceWithNoCacheHandler;
+      break;
     // TODO(leszeks): Possibly differentiate between the other kinds of script
     // origin also.
     default:
-      if (resource) {
-        no_handler_reason =
-            v8::ScriptCompiler::kNoCacheBecauseResourceWithNoCacheHandler;
-      } else {
-        no_handler_reason = v8::ScriptCompiler::kNoCacheBecauseNoResource;
-      }
+      no_handler_reason = v8::ScriptCompiler::kNoCacheBecauseNoResource;
       break;
   }